<span>The symptoms of xeroderma pigmentosum, or XP, usually appear in infancy. They can range from extreme sunburn after a few minutes of exposure to UV rays, to the reddening of the white of the eyes if no sun protection is worn. Most patients with XP develop skin or eye cancer multiple times in their lifetime. Around half of the children diagnosed with XP will develop skin cancer by their 10th birthday.</span>
the Answer is C. because recessive means two of the same alleles and non dominant
A is the answer for this question
Cancer cells and Corona virus
The human genome has been estimated to have 20,000 - 25,000 human protein - coding genes.
Before it was thought that the number of genes in the human genome was about 100,000, but with better and more advanced gene finding technology, this number has been revised down to the current estimate, and could continue to drop further.
The human genome has 23 chromosome pairs with a total of about 3 billion DNA base pairs. There are 22 autosomal chromosomes plus the sex determining X and Y chromosomes, to make 23 pairs.
